\begin{tabular}{cc|c||c|c}
	\multicolumn{3}{c||}{\textbf{Exploração Fácil}}                      & \multicolumn{2}{c}{\textbf{Exploração Difícil}}         \\
	\multicolumn{2}{c|}{\emph{Ótimo humano}} & \emph{Abuso da pontuação} & \emph{Recompensas densas} & \emph{Recompensas esparsas} \\
	\hline
	Assault     & Asterix                    & Beam Rider                & Alien                     & Freeway                     \\
	Asteroids   & Atlantis                   & Kangaroo                  & Amidar                    & Gravitar                    \\
	Battle Zone & Berzerk                    & Krull                     & Bank Heist                & Montezuma's Revenge         \\
	Bowling     & Boxing                     & Kung Fu Master            & Frostbite                 & Pitfall                     \\
	Breakout    & Centipede                  & Road Runner               & H E R O                   & Private Eye                 \\
	Chopper Cmd & Crazy Climber              & Seaquest                  & Ms Pac Man                & Solaris                     \\
	Defender    & Demon Attack               & Up N Down                 & Q Bert                    & Venture                     \\
	\hline
\end{tabular}
